Key specifications

Dimensions
18.0"W × 29.13"D × 18.0"H
Type
Booster Heater
Installation Type
Floor Model
Material
Stainless Steel
Capacity
6 Gallons
Watts
39 kW
Spec sheet

Hubbell Water Heaters J639 Electric Booster Heater, 39 kW, 6-Gallon Storage, Stainless Steel Tank, Electronic Controller

$4,184.25
/each
Estimated to ship in 11–14 business days Free Shipping
Electrical
Leg type
Included: Hubbell Water Heaters warranty Tank and components: one year parts and labor. Tank only: ten years non-pro-rated

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Questions before you buy?

Talk to a specialist — usually within 1 hour, 9am–6pm EST.

Questions before you buy?

Talk to an equipment specialist about voltage, installation or the right size for your kitchen.
Usually within 1 hour, 9am–6pm EST.

Specifications

Type Booster Heater
Installation Type Floor Model
Material Stainless Steel
Capacity 6 Gallons
Watts 39 kW
Controls Electronic Display Controller
Insulation CFC/HCFC-Free Closed Cell Foam
Safety Features Low Water Cut-Off and Leak Detection

Description

The J639 is an electric booster heater with 39.0 kW output and 6-gallon storage capacity.

  • ASME-stamped stainless steel tank with CFC/HCFC-free closed-cell foam insulation
  • Electronic display controller with low water cut-off and leak detection
  • Stainless steel exterior
  • Pressure reducing valve with bypass, T&P gauge, and T&P relief valve
  • Adjustable plastic legs

Overall Dimensions:

18.0"W x 29.13"D x 18.0"H

Product Weight:

110.0 lb

Electric Heating Output

Provides 39.0 kW of electric heating output.

Storage Capacity

Includes 6-gallon storage capacity.

Stainless Steel Tank

Uses an ASME-stamped stainless steel tank.

Foam Insulation

Uses CFC/HCFC-free closed-cell foam insulation.

Electronic Controller

Includes an electronic display controller with low water cut-off and leak detection.

Stainless Steel Exterior

Has a stainless steel exterior.

Plumbing Components

Specified with a pressure reducing valve with bypass, T&P gauge, and T&P relief valve.

Adjustable Legs

Includes adjustable plastic legs.

Documentation

Certifications & Compliance

Certified badge of NSF Certified
NSF Certified
Certified badge of UL Certified
UL Certified

Frequently Asked Questions

The J639 has 6-gallon storage capacity.
The J639 has a 39.0 kW electric heating output.
It uses an electronic display controller with low water cut-off and leak detection.
The product measures 18 in wide by 29.13 in deep by 18 in high and weighs 110 lb.
The tank is ASME-stamped stainless steel, and the exterior is stainless steel.
The tank and components are covered for one year of parts and labor. The tank alone has a ten-year non-pro-rated warranty.

Need help deciding?

Our specialist can help you confirm dimensions, building requirements, and other important details before you buy. We usually reply within 1 hour.

or call (888) 307-5030